Electrical connection device

Abstract

An electrical connection device includes a housing, a connecting socket, a conducting contact element, an elastic element, and an engaging element. The housing has a bottom portion, a top portion, and a side portion. The bottom portion has an opening configured for an electrical connecting terminal to pass through. The connecting socket is coupled to the housing. The connecting socket has a mating portion and a connecting portion connected to each other. The mating portion is in the housing and has a mating hole. The mating hole is interconnected to the opening. The conducting contact element is in the mating hole. The elastic element is between the mating portion and the side portion. The engaging element is coupled to the housing and configured to insert into a notch of the electrical connecting terminal.

What is claimed is: 
     
         1 . An electrical connection device, comprising:
 a housing having a bottom portion, a top portion, and a side portion connecting the bottom portion and the top portion, wherein the bottom portion has an opening configured for an electrical connecting terminal to pass through;   a connecting socket coupled to the housing and having a mating portion and a connecting portion connected to each other, wherein the mating portion is in the housing and has a mating hole, and the mating hole is interconnected to the opening of the bottom portion of the housing;   a conducting contact element in the mating hole of the connecting socket;   an elastic element between the mating portion of the connecting socket and the side portion of the housing; and   an engaging element coupled to the housing and configured to insert into a notch of the electrical connecting terminal.   
     
     
         2 . The electrical connection device of  claim 1 , wherein the engaging element is at a side of the mating portion that is away from the elastic element. 
     
     
         3 . The electrical connection device of  claim 2 , wherein the engaging element is over the connecting socket. 
     
     
         4 . The electrical connection device of  claim 2 , wherein the connecting socket is over the engaging element. 
     
     
         5 . The electrical connection device of  claim 1 , wherein the elastic element is connected to the engaging element. 
     
     
         6 . The electrical connection device of  claim 5 , wherein the side portion of the housing has a protrusion protruding toward the connecting socket, and the protrusion is configured to abut against the elastic element when the engaging element inserts into the notch of the electrical connecting terminal. 
     
     
         7 . The electrical connection device of  claim 1 , wherein the elastic element has an engaging hole, and the connecting socket has an engaging portion coupled to the engaging hole of the elastic element. 
     
     
         8 . The electrical connection device of  claim 1 , wherein the elastic element is configured to be compressed along a lengthwise direction of the connecting socket when the engaging element inserts into the notch of the electrical connecting terminal. 
     
     
         9 . The electrical connection device of  claim 8 , wherein a dimension of the electrical connecting terminal along the lengthwise direction is less than a dimension of the opening of the housing along the lengthwise direction. 
     
     
         10 . The electrical connection device of  claim 9 , wherein the connecting portion is configured for a cable to enter along the lengthwise direction and be electrically connected. 
     
     
         11 . The electrical connection device of  claim 1 , wherein the elastic element is configured to be compressed along a width direction of the connecting socket when the engaging element inserts into the notch of the electrical connecting terminal. 
     
     
         12 . The electrical connection device of  claim 1 , wherein the engaging element is a structure formed integrally with the housing. 
     
     
         13 . An electrical connection device, comprising:
 a housing having a bottom portion, a top portion, and a side portion connecting the bottom portion and the top portion, wherein the bottom portion has an opening configured for an electrical connecting terminal to pass through;   a connecting socket coupled to the housing in a relatively movable manner, wherein the connecting socket has a mating hole, and the mating hole is interconnected to the opening of the bottom portion of the housing;   a conducting contact element in the mating hole of the connecting socket; and   an engaging element coupled to the housing and configured to engage the electrical connecting terminal when the electrical connecting terminal inserts into the mating hole.   
     
     
         14 . The electrical connection device of  claim 13 , wherein the connecting socket comprises a mating portion and a connecting portion, and the mating portion is in the housing and connected to the connecting portion along a lengthwise direction of the connecting socket. 
     
     
         15 . The electrical connection device of  claim 14 , further comprising an elastic element between the mating portion and the side portion. 
     
     
         16 . The electrical connection device of  claim 15 , wherein the elastic element is connected to the engaging element, and the side portion has a protrusion configured to abut against the elastic element. 
     
     
         17 . The electrical connection device of  claim 14 , wherein a dimension of the opening along the lengthwise direction is greater than a dimension of the opening along a direction that is perpendicular to the lengthwise direction. 
     
     
         18 . The electrical connection device of  claim 14 , wherein a dimension of the opening along the lengthwise direction is less than a dimension of the opening along a direction that is perpendicular to the lengthwise direction. 
     
     
         19 . The electrical connection device of  claim 13 , wherein in a projection along a central axis of the mating hole, the engaging element partially overlaps the opening.